The Times

Test your powers of logic with these challenging Su Doku puzzles.Specially compiled to provide the most deadly Su Doku challenge, this is the only volume for Su Doku enthusiasts who need a puzzle…

KenKen is the brilliant successor to Su Doku that's taken Japan by storm. In collaboration with The Times, Collins - the no 1 puzzle publisher - are proud to publish it in the UK.KenKen is a brain-…